Pressure-transmission element for holing with concrete and reinforced-concrete elements

摘要

The invention relates to a pressure-transmission element for joints on concrete and reinforced-concrete elements, in particular reinforced-concrete pipes which are laid according to the holing principle. The technical object consists in creating a pressure-transmission element which can be formed and arranged as desired directly at the site of use in accordance with the requirements and which does not transmit increased transverse tensile stresses in the abutting area of the concrete and reinforced-concrete elements, damage to the ends of the concrete and reinforced-concrete elements being avoided during use of the pressure-transmitting element, and the said element can be produced without expensive technological processes and without the use of high-grade raw materials. According to the invention, the pressure-transmitting element consists of one or more annular or spiral layers, lying side-by-side, of a highly compressed cladded-core rope structure of round cross-section. The core material has a high resistance to deformation but a largely elastic behaviour. The rope diameter or, in the case of several layers, the sum of the rope diameters is not more than 80% of the wall thickness of the concrete and reinforced-concrete elements. The cladded-core rope structure can preferably be multi-step.